1. Department of Pediatric Hematology; Erasmus University Medical Center - Sophia Children's Hospital Rotterdam; Rotterdam the Netherlands
2. Hospital Pharmacy - Clinical Pharmacology; Academic Medical Center Amsterdam; Amsterdam the Netherlands
3. Department of Hematology; University of Groningen; University Medical Center Groningen; Groningen the Netherlands
4. Department of Pediatric Hematology; Academic Medical Center Amsterdam; Amsterdam the Netherlands
5. Department of Hematology; Radboud University Medical Center; Nijmegen the Netherlands
6. Department of Thrombosis and Hemostasis; Leiden University Medical Center; Leiden the Netherlands
7. Netherlands Hemophilia Patient Society (NVHP); Nijkerk the Netherlands
8. Department of Hematology; Erasmus University Medical Center Rotterdam; Rotterdam the Netherlands